Alcohol is known to disrupt sleep. Body has to work hard to filter the toxins out. I’ve never considered hydration level. Hmmm might have to experiment 

 That makes sense. Just remember that too much water will make you wake to pee.  

 Haha I was just literally considering water intake timing before bed due to that 

 That makes sense. Just remember that too much water will make you wake to pee.  

 Yes. I have found hydration is important.
It's a hard balance though. Too much hydration means too many trips to the bathroom.